<!DOCTYPE HTML>
<html>
<head>
    <meta charset="UTF-8">
    <%@ page language="java" pageEncoding="UTF-8" contentType="text/html;charset=utf-8"%>
    <title></title>
<h1>欢迎登录!${user.username }</h1>
<form action="/loginUser" method="post">
    <input type="text" name="username"><br>
    <input type="password" name="password"><br>
    <input type="submit" value="提交">
</form>